A)5x²+7x+3; 12x²-3x+8;6x²-4x+9 =23x²+20
b)2a+5b+7; 8a-3b+3; -5a-7b-6
=5a-5b+4
c)4x+5y+7;-5x-y-3; 3x-3y+2
=2x+y+6
the ans are what I said but the ans get how explain it step by step
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A)5x²+7x+3; 12x²-3x+8;6x²-4x+9 =23x²+20
b)2a+5b+7; 8a-3b+3; -5a-7b-6
=5a-5b+4
c)4x+5y+7;-5x-y-3; 3x-3y+2
=2x+y+6
the ans are what I said but the ans get how explain it step by step
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